Rolling-mill



(No Model.) Z-Sheets-Sheet 1.

S. DUPF.

RoLLING MILL.

No. 354,110. Patented Deo. 14, 1886.

.lttorney (No Model.) 2 Sheets-Sheet 2,

S. DUPF.

ROLLING MILL.

No. 354,110. Patented Dec. 14, 1886.

SAMUEL DUFF, OF STEUBENVILLE, OHIO.

SPECIFICATION forming part of Letters Patent No. 354,110, dated Decemberle, 1386.

Application filed February 18, 1886. Serial No1-92,1113.

will enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

My invention relates to certain new and useful improvements in rollingiron; and it consists in providing` the rolling mechanism with means forelevating the iron in front of the rolls so it may be readily passedthrough the same.

My invention also consists in the construet-ion and combination oftheparts as will be hereinafter fully set forth, and specifically pointedout in the claims.

In the accompanying drawings, which illustrate my invention, Figure lshows my improvement applied to aset of rollers which are designed toroll bar-iron, and also to aset of rollers which are adapted to rollsheet-iron. Fig. 2 is an end view of my improvement. Fig. 3 is asectional view. Fig. 4 is a detail perspective view of the meansemployed for throwing the lever which operates the elevating mechanismofthe cage out of gear.

A A A refer to suitable housings within which are journaled rolls B BandB. Two sets of these rolls, as indicated by B B, have smooth surfaces,and are adapted especially for rolling sheet metal, while the rollers Bare provided with suitable corrugations of different sizes and shapesfor properly manipulating and forming bars or blanks of a desired shape.The rolls hereinbefore described are preferably located in line witheach other, and are mounted on shafts which are geared to each other sothat they will move in unison. No special claim is made to these rollersper se, as they form no part of my invention, and therefore a furtherdescription thereof or their action upon the metal will not benecessary.

C refers to braces or suitable standards, which are attached to theupper portion of the (No model.)

frames A and extend horizontally therefrom for a suitable distance,after which they are bent downwardly and secured to the support orfoundation upon which the frames A rest. The bars G are also providedwith depending bars c, which extend vertically in front of the rolls andserve as guides for the ends of the lever D, which raises and lowers thecarriage.

TheV levers D are supported at suitable distances from the rollsbystandards E, to which they are pivotally attached, and the ends ofthese levers D are adapted to engage with a toothed segment orenlargement, e, which is formed integral with or attached to thecogwheel F, which is mounted in suitable supports, F', so that when saidcog-wheel is rotated the segment will engage with the end of the leverlto elevate the opposite end of the lever.

The cog-wheel F is driven by a pinion,f,

which is secured on the crank-shaft g, which is driven from a suitableengine or other power. The pinion f can be thrown in and out of gear bymeans of the lever' G the upper end of which embraces the 'recessedsleeve g', into which the flattened end of the shaft g passes. By thisconstruction l provide a means whereby when it is desired the pinionfcan be thrown in engagement with the cog-wheel F, which will be causedto rotate so that the segment thereon will engage with the lever D andelevate thesame, which movement is caused when it is desired to take theiron which is passed through thelowerrolls and place itin position sothat it will be returned between the upper rolls.

H refers to tables or elevators, which may be corrugated attheir basewhen it is desired to elevate bars of metal, or plain when used forraising sheet metal. The bases 7L of these elevators at their outer endshave transverse bars t', which project beyond the standards, while thesides are cut away, as shown at t and i, so that the elevators orhoisting apparatus may have a slight swinging movement between theframes or supports G and C. The base of the elevators H have attachedthereto suitable bars, Z, which converge toward each other at theirupper ends and are formed into eyes through which a bolt passes forconnecting the same to the ends ofthe levers.

The vertical bars (l have attached thereto,

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on a line with the space between the central rollers,segmental platesK,and smaller plates,

K, are attached to the vertical bars C', opposite the central roller. Byproviding the frame with these plates the metal, after passing throughthe lower rollers, is deposited upon the platform II of the elevator,and when the elevator is raised it will be forced outwardly from theroller, so as to allow the end of the same to clear the central roller,and as soon as the metal bars are raised beyond the central roller theplatform will engage with segmental plates K and be shifted or throwntoward the space between the upper rollers, so that the bars will becaught between said rollers and carried through.

By providingthe mechanism hereinbefore despribed in rolling iron a handor person is dispensed with and the work of returning the bars to therollers is performed automatically and at the proper time.

If desirable, the platforms may be provided with spring-buffers uponwhich the elevator may strike in their downward movement.

The device hereinbefore described is especially adapted for rolling barsprimarily or prior to forming them into suitable blanks, and after thebars have beenrolled and rerolled theyareinserted between the rollersindicated by the letter L. I

The base of the platforms or elevators H may consist of plates or bars,which are suitably shaped and arranged, and when plates are employedthey are perforated, so as to allow air to pass between the same, andthus avoid undue heating of the parts.

In front of the rollers L are located curved plates M, which are securedrigidly at their upper and lower edges by means of transverse bars tothe outer Vertical edges of the frames A, and these return-plates areprovided with slots m, as shown in the accompanying drawings, andbetween said slots and the inner sides of said plates curved metallicbarsN are rigidly secured, the upper portion of said metallic barsdepending as shown in Fig. 3, thelower edge of said depending portionbeing curved upwardly, and to these upwardly-curved portions are secureda plate, n, thus forming an u opening, through which the metal will passto rthe upper rollers. In rolling plain. sheets of metal, theintermediatebars, N, are dispensed with, and they are only employed inrolling bars or blanks. Two or more of the guides or bars, M, may beatan angle, as shown-in Figs. l and 2, so that the bars after passingthrough the rollers may be fed against the plates M, and will be guided'by the projecting portions N to the adjacent rollers, thus making therolling continuous from one end ofthe rolls to the other.

I am aware that it is not broadly new to provide rolls for rolling ironwith means for returning the bars from the lower rolls to the upper onesin a three-high7 roll, as such mechanism is shown in Patent No. 220,818,dated October 21, 1 879.

I do lnot herein claim the rigid devices (plates M and accessories,) forguiding the metal from one pass to another in a different verticalplane.

I claim--d l. In combination with three or more rolls, avertically-movable platform supported opposite said rolls, means forelevating and lowering the platform, and cani-plates for moving theplatform to the bite of the upper rolls, whereby the metal undertreatment may be received from the lower rolls and raised to and thrustwithin the bite of the upper rolls, substantially as specified.

2. In a device for rolling metal, an elevator supported in front of aset of rolls, the guideways forsaid elevators having segmental plates Kand K secured thereto, so as to swing the platform when it is raisedaway from the central roll, and then move the same to the bite of theupper rolls, so that the bars will be caught and carried from theplatform, substantially as described, and for the purpose set forth.

3. In combination with a set of rolls, a platform mounted in suitableframe in front ofsaid rolls, said platform having recessed sides, and atransverse bar attached thereto for limiting its swinging movement,plates K and K', adapted to engage with the recessed edges of theplatform, and a lever for elevating the same, the parts being organizedsubstantially as shown, and for the purpose set forth.

Inv testimony whereof l affix my signature in presence of two witnesses.

SAMUEL DUFF.

Witnesses:

FRANK A. M. KREPs, L. B. D. REEsE.

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